The genetic characteristics of the cupreous porphyries in Shanyang District, Shanxi Province
Yaxiong Zhang
Journal of Central South University ›› 1995, Vol. 2 ›› Issue (2) : 42 -47.
The cupreous porphyries occurring in Shanyang District, Shanxi Province, were geotectonically developed in Qinling orogenic belt during Yenshan epoch. Their K/Na=0.84–2.74,δ = 2.48–3.70, DI = 70.19–80.69,δEu≈1,δ34S is approximately consistent with that of the meterorite, lead isotope leadμ=9.03–9.42. All of the petrochemistry characteristics show that those porphyries are anatectic syntectic (I-type) granites formed in the intracontinental subduction belt, and the granites are favourable for forming the porphyry copper deposit.
porphyry / genetic characteristic / anatectic syntectic granite / copper deposit
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